[Open64-devel] automatic inlining & preemptible function

[Christophe L. <chr...@st...>]

Hello,

I am experiencing some issues when using automatic inlining with Open64
compiler.

For instance, with the following sample code:

====================================
int smul0(int a, int b)
{
        return a*b;
}

int sadd0(int a, int b)
{
        return a+b;
}

int mac0(int a, int b, int c)
{
        return sadd0(a, smul0(b,c));
}
====================================


If I use the -O2 -INLINE:list=on -INLINE:all=on  switches,
I get messages such as:

smul0 not inlined into mac0: function is preemptible and has not been
set to mustinline   


My question is: what is the exact meaning of preemptible?
I thought that within a module (ie .o file), local references where
resolved at assembly time, and thus not candidate for later
replacement by shared objects. 

If I am right, smul0 and sadd0 should have been inlined in
my example, shouldn't they?

Thanks,

Christophe.